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What kind of lamp to use with a stroboscopic disc?

Hey,
I downloaded and printed out a strobe disc to check the speed on my SOTA Sapphire. But what kind of light or lamp do you need to get the disc to work properly?
Thanks!
rebbi
moonglum
619 posts
 

Actually, simple filament bulbs are reactive enough to be adequate for this purpose. However, tolerance on Mains frequency is too coarse for setting up a T/T. What you need is a quartz-locked, hand-held, battery powered LED flasher to get an accurate indication such as :


http://keystrobe.com/Home.html

Hope this helps.

brf
1,715 posts
 
If you have a Smart Phone, there are many light strobe apps that you can download for free
miner42
709 posts
 
On my iPhone 6 Plus I use the app StrobeLight by Motionics.  You can adjust the speed of the strobe so it is very helpful
rebbi OP
1,326 posts
 
@miner42 
Would you be so kind as to walk me through how to use that app with a turntable? The documentation is pretty thin. Thanks!
brf
1,715 posts
 
You will need a turntable strobe strobe disk.  The markings will be set for either a 50hz or 60hz line frequency depending on your country's power supply.  In North America, we have 60hz power.  Just set the StrobeLight at 60hz and point it at the revolving strobe disc.  When the table's speed reaches 33.333RPM, the strobe lines will appear stationary.
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